%------------------------------------------------------------------------------
% File : Vampire---5.0.1
% Problem : NUM867_1 : TPTP v9.3.1. Released v5.0.0.
% Transfm : none
% Format : tptp:raw
% Command : run_vampire /export/starexec/sandbox/benchmark/theBenchmark.p 300 THM
% Computer : n001.cluster.edu
% Model : x86_64 x86_64
% CPU : Intel(R) Xeon(R) CPU E5-2620 v4 2.10GHz
% Memory : 8046.5625MB
% OS : Linux 6.8.0-71-generic
% CPULimit : 300s
% WCLimit : 300s
% DateTime : Tue Sep 29 12:17:20 PM UTC 2026
% Result : Theorem 2.67s 1.34s
% Output : Refutation 2.67s
% Verified :
% SZS Type : Refutation
% Derivation depth : 5
% Number of leaves : 1
% Syntax : Number of formulae : 6 ( 6 unt; 0 typ; 0 def)
% Number of atoms : 6 ( 5 equ)
% Maximal formula atoms : 1 ( 1 avg)
% Number of connectives : 4 ( 4 ~; 0 |; 0 &)
% ( 0 <=>; 0 =>; 0 <=; 0 <~>)
% Maximal formula depth : 3 ( 2 avg)
% Maximal term depth : 2 ( 1 avg)
% Number arithmetic : 13 ( 0 atm; 5 fun; 5 num; 3 var)
% Number of types : 1 ( 0 usr; 1 ari; 0 dat; 0 cdt)
% Number of type conns : 0 ( 0 >; 0 *; 0 +; 0 <<)
% Number of predicates : 2 ( 0 usr; 1 prp; 0-2 aty)
% Number of functors : 3 ( 1 usr; 2 con; 0-2 aty)
% Number of variables : 3 ( 2 !; 1 ?; 3 :)
% Comments :
%------------------------------------------------------------------------------
tff(func_def_4,type,
sK0: $int ).
tff(f1,conjecture,
! [X0: $int] : ( $sum(0,X0) = X0 ),
file('/export/starexec/sandbox/benchmark/theBenchmark.p',prove_sum_0_identity_rev) ).
tff(f2,negated_conjecture,
~ ! [X0: $int] : ( $sum(0,X0) = X0 ),
inference(negated_conjecture,[status(cth)],[f1]) ).
tff(f15,plain,
? [X0: $int] : ( $sum(0,X0) != X0 ),
inference(ennf_transformation,[],[f2]) ).
tff(f16,plain,
sK0 != $sum(0,sK0),
inference(skolemize,[status(esa),new_symbols(skolem,[sK0]),skolemize(X0,sK0)],[f15]) ).
tff(f17,plain,
sK0 != $sum(0,sK0),
inference(cnf_transformation,[],[f16]) ).
tff(f18,plain,
$false,
inference(evaluation,[],[f17]) ).
%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.00/0.03 % Problem : NUM867_1 : TPTP v9.3.1. Released v5.0.0.
% 0.00/0.06 % Command : run_vampire /export/starexec/sandbox/benchmark/theBenchmark.p 300 THM
% 0.12/0.39 % Computer : n001.cluster.edu
% 0.12/0.39 % Model : x86_64 x86_64
% 0.12/0.39 % CPU : Intel(R) Xeon(R) CPU E5-2620 v4 @ 2.10GHz
% 0.12/0.39 % Memory : 8046.5625MB
% 0.12/0.39 % OS : Linux 6.8.0-71-generic
% 0.12/0.39 % CPULimit : 300
% 0.12/0.39 % WCLimit : 300
% 0.12/0.39 % DateTime : Sun Sep 27 21:42:51 UTC 2026
% 0.12/0.39 % CPUTime :
% 0.12/0.39 Running run_vampire /export/starexec/sandbox/benchmark/theBenchmark.p 300 THM
% 0.12/0.43 Running first-order theorem proving
% 0.12/0.43 Running: /export/starexec/sandbox/solver/bin/vampire --input_syntax tptp --output_axiom_names on --mode casc -m 16384 --cores 7 -t 300 /export/starexec/sandbox/benchmark/theBenchmark.p
% 2.67/1.34 % (3978175)Detected arithmetic, will pick strategies from an ALASCA-aware ARI schedule.
% 2.67/1.34 % (3978263)dis+21_64_to=kbo:sil=128000:si=on:sp=weighted_frequency:uwa=alasca_can_abstract:random_seed=3529164953:i=4:rtra=on_3000 on theBenchmark for (3000ds/4Mi)
% 2.67/1.34 % (3978263)First to succeed.
% 2.67/1.34 % (3978263)Solution written to "/export/starexec/sandbox/tmp/vampire-proof-3978175"
% 2.67/1.34 % (3978262)lrs+1002_4:1_to=lpo:sil=64000:si=on:br=off:random_seed=2440656146:s2a=on:i=7:rtra=on:inst=on_3000 on theBenchmark for (3000ds/7Mi)
% 2.67/1.34 % (3978259)dis+1002_16:1_to=lpo:sil=64000:sas=z3:si=on:norm_ineq=on:gve=force:uwa=one_side_constant:random_seed=3491541409:i=12:doe=on:rtra=on:gtg=exists_top:ss=axioms_3000 on theBenchmark for (3000ds/12Mi)
% 2.67/1.34 % (3978262)Also succeeded, but the first one will report.
% 2.67/1.34 % (3978260)dis+1002_1_to=kbo:sil=128000:tgt=ground:sas=z3:si=on:spb=units:tha=off:random_seed=3189066833:i=307:kws=precedence:nm=0:rtra=on_3000 on theBenchmark for (3000ds/307Mi)
% 2.67/1.34 % (3978261)dis+10_3_slsqr=1,4:to=lpo:sil=128000:thi=strong:si=on:uwa=off:s2agt=20:slsqc=1:slsq=on:random_seed=2771936829:i=201:slsql=off:asg=cautious:rtra=on:gtg=all:ss=axioms:sgt=16_3000 on theBenchmark for (3000ds/201Mi)
% 2.67/1.34 % (3978265)lrs+10_1_tgt=ground:sas=z3:si=on:random_seed=1654041746:i=33:rtra=on_3000 on theBenchmark for (3000ds/33Mi)
% 2.67/1.34 % (3978264)lrs+10_1_to=lpo:sas=z3:si=on:tha=off:random_seed=2088261662:i=46:rtra=on_3000 on theBenchmark for (3000ds/46Mi)
% 2.67/1.34 % (3978259)Also succeeded, but the first one will report.
% 2.67/1.34 % (3978261)Also succeeded, but the first one will report.
% 2.67/1.34 % (3978260)Also succeeded, but the first one will report.
% 2.67/1.34 % (3978265)Also succeeded, but the first one will report.
% 2.67/1.34 % (3978264)Also succeeded, but the first one will report.
% 2.67/1.34 % (3978263)Refutation found. Thanks to Tanya!
% 2.67/1.34 % SZS status Theorem for theBenchmark
% 2.67/1.34 % SZS output start Proof for theBenchmark
% See solution above
% 2.67/1.34 % (3978263)------------------------------
% 2.67/1.34 % (3978263)Version: Vampire 5.0.1 (Release build, commit ea8961452 on 2026-07-16 15:14:34 +0200)
% 2.67/1.34 % (3978263)Linked with Z3 4.14.0.0 3c47fd96cf5645d0c42b2c819d9e9a84380aa721 z3-4.8.4-9178-g3c47fd96c
% 2.67/1.34 % (3978263)CaDiCaL version: 2.1.3
% 2.67/1.34 % (3978263)Termination reason: Refutation
% 2.67/1.34 % (3978263)Time elapsed: 0.001 s
% 2.67/1.34 % (3978263)Peak memory usage: 89 MB
% 2.67/1.34 % (3978263)------------------------------
% 2.67/1.34 % (3978263)------------------------------
% 2.67/1.34 % (3978175)Success in time 0.284 s
% 2.67/1.34 % Vampire exiting
%------------------------------------------------------------------------------